Glass-molder&#39;s tool.



No. 68!,454. Patented Aug. 27, l90l. J. D. MILLER.

GLASS MOLDERS TOOL (Application filed Dec. 11. 1899.)

(No Model.)

WITNESSES T UNITED STATES PATENT CEETQE. I

JOHN D. MILLER, OF \VASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO THE BELLE PRE BOTTLE COMPANY OF IVASHINGTON, D. 0., OF SAME PLACE.

GLASS-MOLDERS TOOL.

SPECIFICATION forming part of Letters Eatent No. 681,454, dated August 27, 1901.

Application filed December 11, 1899- Serial No. 739,980- (No model.)

To all whom it may concern:

Be it known that I, JOHN D. MILLER, a citizen-of the United States, residing at W'ashington, in the District I of Columbia, have invented certain new and useful Improvements in Glass-Molders Tools; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to glass-molders im-- plements, but more particularly to those implements used in forming the necks and mouths of bottles.

Heretofore it has been found impossible to manufacture a bottle having a groove around its top through which is formed at one point a notch or cut-out. This character of bottle cannot be made on a machine, norcould it be made with any of the heretofore-known hand tools or processes.

It is the purpose of my invention to overcome this difficulty and produce a tool with whichabottle like that described in myUnited States Letters Patent No.-637,740, granted to me November 21, 1899, can be made; and with this object in View my invention consists, primarily, of a revoluble mandrel having a laterally-extending annular flange and a lug or former located between said flange and mandrel; and it consists, further, of the parts and combination of parts, as will be more clearly pointed out in the following specification.

In the drawings forming a part of this application, Figure 1 is a side elevation of a pair of stabbing-tongs embodying my invention. Fig. 2 is a central vertical section through the same in closed position. Fig. 3 is a top plan view. Fig. 4 is a detail vertical sectional View of the mandrel.

1 represents the handle of the stabbingimplement, comprising, as usual, a piece of spring metal bent upward from the center, said handle having an opening in the bottom thereof.

3 indicates jaws secured to the ends of the handle, as shown, by means of the rivets 4:, said jaws each being provided with a V-shaped groove 5 near their base, immediately above which is formed a rim-shaping groove 6.

'7 indicates recesses cut in the base of the jaws and extending to the inner faces of the same, as more clearly shown in Fig. 2.

8 is a flange extending from and integral with the inner edges of the base of the jaws, (see Fig. 2,) through the upper portion of which a pin 9 extends, said pin projecting across and below the top of the recesses 7.

10 is a rod, one end of which is screw-threaded and passes through the opening in the bottom of the handle, where it is secured by means of a nut 11 and a jam-nut 12, said rod being adjustable vertically by means of said nuts.

13 is a plate firmly secured upon the upper end of the rod 10 and provided with depending lugs 14, adapted to move in the recesses f the jaws 3. The pins 9, being in the path of the lugs 14, prevent the jaws from extending under the action of the spring-handle 1 too far, thereby limiting the movement necessary to close said jaws around the neck of a bottle.

15 is an enlarged shaft integral with the rod 10 and extending upwardly from the upper face of the plate 13, from which extends an integral screw-threaded end 16, on which is secured a conical nut 17.

18 is a conical-shaped mandrel havin g a central bore, in which the shaft 15 is journaled,

said mandrel being provided with a base annular flange 19, having an upper inclined face.

20 of the same angle as that of the V-shaped groove 5 in the jaws. In this annular flange I form an annular groove 21, and in this groove is formed a lug 22, which extends entirely across the groove and upward from the bottom of the groove to a point slightly below the top of the annular flange, as best seen in Figs. 2 and 4.

23 is an annular lug depending from the bottom of the mandrel around its central bore, forming a seat or cup for balls 24, which are confined in said cup by means of the plate 13, thereby forming a ball-bearing for the mandrel to revolve uponand reducing friction to pressed quicker than the other.

a minimum. The mandrel is secured upon its shaft 15 by means of the nut 17, which is made conical in order to continue the outline of the mandrel unbroken.

In assembling the parts the plate 13 and mandrel 18 are properly mounted upon the rod 10. Then the lower end of the rod is passed through the opening in the bottom of the handle l, the jam-nut having been first threaded on said rod. The rod is then adjusted vertically until the inclined face 20 of the annular flange 19 fits snugly under the upper side of the V-shaped groove 5, as shown in Fig. 2. The nut 11 is then screwed up tight against the bottom of the handle upon the rod 10, thereby locking the parts in proper position. In this position the jaws are limited in their outward movement by means of the lugs 14 on the plate 13 and the pins 9 across the recesses or grooves 7.

In the use of my tool the bottle and mandrel are both revolved in the jaws, whereby a more finely-defined curve is given to the neck of the finished bottle and a sharp shoulder is formed between the bead and neck and the head of the bottle given a more finished appearance.

\Vith the tools heretofore known it was impossible to form a cut-away or depressed portionthrough the bead, as shown in my patent above referred to. In order to overcome this shortcoming, I form the lug or projection 22 in the groove 21, which when the hot bottle is closed in the tool displaces the hot glass and distributes it evenly around the groove, thereby forming a clean-cut recess or depression in said bead. The position of the neck of the bottle in myimproved tool is shown in Fig. 2.

From the construction shown it will be seen that the mandrel is centered automatically between the tools. For instance, it will be supposed that one side of the handle is de- One of the lugs 14: will strike the inner end of therecess 7, thus carrying the mandrel with the handle and jaw until the jaws are fully closed, thereby preventing an unequal pressure on one side. As soon as the jaws are released they spring outward under the action of the springhandle until the pins 9 strike against the lugs 14, thereby arresting their movement. The engagement of the lugs 14 and pins 9 again center the mandrel between the open jaws,.

whereby the bottle may be withdrawn without injury.

What I claim is 1. In a tool of the character described, a revoluble mandrel, a laterally-extending annular flange integral with the base of the mandrel, a groove formed in said flange and a lug extending across said groove.

2. In atool of the character described, a revoluble mandrel, alaterally-extending annular flange having an inclined upper face, integral with its base, a groove formed in the upper face of the flange and a lug formed trans: Versely in said groove.

3. In a tool of the character described, a rev-- oluble mandrel, alaterally-extending annular flange having an inclined upper face, a groove in said flange inside the inclined face, a lug formed in the bottom of the groove, eXtend-.

ing entirely across and to a point below the top of the groove.

4. A mandrel comprising the main body, an integral annular base-flange having an inclined upper face, an annular groove formed in said flange back of the inclined face, and a lug extending entirely across the groove and to a point below the top of the groove.

5. In a tool of the character described, the combination with the handle, of a mandrel, a base upon which the mandrel is mounted, lugs depending from said base adapted to engage the handle, and a rod to support said mandrel and base.

6. In a tool of the character described, the combination with a handle, grooves or recesses formed in said handle, of a mandrel, a base upon which the mandrel is mounted, lugs depending from said base adapted to engage said grooves or recesses, and a rod connected to the handle to support said mandrel and base. I

7. In a tool of the character described, the combination with the handle, grooves formed therein, and stops at the end of said grooves, of a mandrel, a base for the same, lugs depending from said base and a rod adj ustably secured to the handle to support said base and mandrel.

S. In a tool of the character described, the combination with a handle comprising the jaws, a V-shaped groove formed in the inner face of said jaws and a rounded groove extending upwardly from the first named groove, grooves formed in the base of the jaws, and a stop extending across the outer end of the last-named grooves, of a supporting-rod ad justably mounted in said handle, a base-plate having depending lugs mounted on said rod, a shaft extending upwardly from said plate and a mandrel journaled on said shaft, and comprising an annular flange having an inclined upper face, an annular groove in the top of the flange back of the inclined face, and a lug extending across and to a point below the top of the groove, and a ballbearing interposed between the base-plate and mandrel.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN D. MILLER.

i/Vitnessesz EDWIN S. CLARKSON, AUGUST DONATH. 

